#metrics

Built a Mastodon observability stack over the weekend for toot.community: Grafana dashboards (web/sidekiq/streaming/edge), VictoriaMetrics rules, SLOs & alerts. The ultimate goal was to get meaningful symptom (user-facing) alerts and to learn about Jsonnet and Grafonnet.

Convert metrics to dashboards & alerts

Like any process monitored with Prometheus, Caddy exposes an HTTP endpoint that responds in the Prometheus exposition format. Caddy's Prometheus client is also configured to respond with the OpenMetrics exposition format if negotiated (that is, if the Accept header is set to application/openmetrics-text; version=0.0.1).

The purpose of this document is to provide an overview of the infrastructure used to operate the Mastodon instance, and ancillary services, that make up vmst.io.

The purpose of this document is to provide an overview of the infrastructure used to operate the Mastodon instance, and ancillary services, that make up vmst.io.

Deploy scripts are just one place where a concise and safe way to record a metric/event in important. From Etsy's blog, using vertical lines to represent distinct events (code deployments) to give more context to the login trends:

Deploy scripts are just one place where a concise and safe way to record a metric/event in important. From Etsy's blog, using vertical lines to represent distinct events (code deployments) to give more context to the login trends:

"Grafitter is a personal informatics tool for collecting and exploring information about your habits and patterns."

"Spectator is a Firefox extension that collects data about how Firefox is used. This information is used to better understand what people value in the browser."

"The widget hits a PHP script that returns a JSON object which Flash Lite uses to output the hourly metrics for the past 24 hours."

"RSS cannot remain the same. It needs to evolve and to include better reporting capabilites. RSS 2.0 is dead, long live the next version!"

"You can not play on the net without at least some data that implies personal identity being transmitted with every single user action. It’s the price we pay for “hey, that’s neat!”"

"I wanted to investigate navigation patterns, so I have written an Ajax based link tracker."

"Do you really need a stats program that uses AJAX, just because it uses what is currently an "in" technology to use and is made by Shaun Inman. When there are hundreds of other stat tracking applications out there?"